Razor



y 1939- o. v. RODRIGUES 2,160,370

RAZOR Original Filed April 4, 1938 Patented May 30, 1939 UNITED STATESRAZOR.

Octavius V. Rodrigues, Fairfi'eld, Gonna, assignor to MagazineRepeating. Razor Company, New York, N. Y., a corporatiomofaNew Jersey;

Original application April 4,v 1938', Serial No; 199,815. Divided andthis application Aprii29, 1938, Serial No. 204,967

8 Claims.

This'application is a division of my pending application Ser. No.199,815, filed April 4, 1938, for Razors.

The invention relates to an improved razor 6 and: particularly a razorof the type in combination'with which a separate magazine is employedafter the manner shown and described in United States Patent No.1,969,945, issued August 14; 1934-that is to say, the type whereinblades are ejected from shaving position in the head and a substituteblade inserted in the head by means of a" magazine provided with afinger for alignment of the magazine with the blade channel in thehead,and with a slide or other suitable means for ejecting a blade from themagazine and at the sametime ejecting from the razor a blade, if any,located therein.

More particularly, the invention relates to a magazine razor that isconstructed in accordance-with, and operates on the principle of thatillustrated in my United States Patent No. 2,066,800, issued January 5,1937, and which is provided with means whereby a blade may be ejectedtherefrom and a substitute blade inserted by means of a magazineprovided with the aligning finger and ejector above referred to.

One of the objects of the invention is an improvement'on the razor of mysaid Patent No. 2;066;800; the improvement consisting in'theprovisionofspecial means for tightly clamping the razor blade in itsholder when the blade is swung Fig. 2 is a view on the line 22 of Fig.1;

Fig; 3 is a view similar to that of Fig. 2 showing-the parts in positionto receive a blade from the magazine;

Fig.- 4 isa detail View of one end of the ejector and the aligningfinger protruding therefrom;

Fig. 5 is a detail view in cross-section of the line 55 of Fig. 1.

Describing the structure shown in the drawing, the-shank lllprojectingfrom the handle H is provided with a blade platform comprising aplatformJZ at about a right angle to the shank (as shown in Figs. 2 and-3), terminating in a guard I3 and slotted as indicated by the numeralI4. The guard is alsoprovided with stops l5 and I511 55 which serve asabutments against which the extreme ends of the cutting edge of theblade abut when the blade is brought to shaving position, as willpresently bedescribed;

From the ends of'the platform l2 two ears [6 and Mia depend, these ears.serving as mounting members forthe blade retaining part of themechanism. The blade-retaining part of the mechanism comprises a bladeholder in the form ofa spring clip consisting of the upper plate I! andthe lower plate l8'joined together at i 9 (the entirestructure beingresilient), the lower plate terminating in the spring tongue 20, whichfor reasons hereinaftermentioned is preferably resilient-a quality'whichmaybe imparted to it by theresilience ofthe material of which it iscomposed.

The blade hOldenin-turn, is slidably fitted in a blade clamp-2l andfromit depend two ears 22 and 22a, the ear 22 being pivotally connected withthe ear l6 and the ear 22a being pivotally connected with the earllia,as is clearly shown in the figures, particularly Fig. 1. Ordinary rivets23 and 2311 may serve to effect the pivotal connections; It is apparenttherefore that the blade holder iscapable of swinging on'these pivotalconnectionsfrom' the position' shown in Fig. 2 (its shaving position) tothat shown in Fig; 3 (its retracted position), or vice versa.

The blade clamp 2i just 'referred'to. is slotted as shown, and ispreferably; although not necessarily, of spring material," and isprovided with two lugs fliiand- 4511," which in combination with theapertures '46"and46'a in the platform and into which they projectconstitute virtually a hinge-connection-betweenthe blade clamp and. theplatform. The center of rotation of the blade clamp-onthi-s hingeconnection and the'center of rotation of th'ebladeholder are sopositioned with'relation to each otherand with relation to the stops l5and IE0 that, when the blade holder and blade'clampare in the retractedposition shown in 3, they maintain their parallelism witheach-other-without' strain, the blade holder being releasedfrompressure, and when'they are in the shaving-position'shown inFig. 2 theblade clam-p isbiased"against the blade holder, thus exerting a'clamping pressure" on the blade and holding it firmly in'shaving"position.

The mechanism for moving the'blade'h'older from oneof thedescribedpositions to the other comprisesaneccentric-arrangement operating in thecam slot in thespring tongue20. The preferred mechanismcomprisesa lever25 terminating at oneend in a sheath or 'scabbard' 26, whichand thepurpose of which -will presently be more particularly described, andoscillatably mounted on the stud 21, which projects from the rivet 28secured in the shank. The lever is provided at its other end with a stud29 serving as a bearing for the cam following roller 30, which in turnprojects through the cam slot 24. The cam slot is so shaped that, as thelever is rotated on the stud 21, it forces the spring tongue 20 upwardlyor downwardly, as the case may be, although the stressing of the springtongue 20 may return the parts. When the lever is swung to the positionshown in Fig. 1, which may be termed its down position, the plate isforced upwardly, thus swinging the blade holder to its shaving positionshown in Fig. 2, with the edge of the blade 3| in contact with the stopsI5 and l5a, which is the proper position for shaving purposes. When thelever is brought to the position shown in dotted lines in Fig. 1, whichmay be referred to as its up position, the blade holder is withdrawn toits retracted position shown in Fig. 3, in which position a blade may beinjected into the blade holder as will be further described.

The lever 25 terminates at one end, as has already been described, in ascabbard or sheath 26. This scabbard or sheath serves for the receptionof the aligning finger 32, which is made for a sliding but reasonablyaccurate fit in the scabbard. When the aligning finger is inserted intothe scabbard to its full distance and the scabbard and magazine 33 areswung to the position shown in dotted lines in Fig. 1, the dischargeorifice 34 of the magazine is in alignment With the blade slot in theblade holder and by operating the ejector slide 35 (all as is describedin the patents above referred to), a blade may be injected into theblade holder, and any blade that may at the time be present in the bladeholder is ejected therefrom. It is to be understood that, when thisoperation takes place, the parts are in the position shown in Fig. 3.

It is desirable that some provision be made to insure that the aligningfinger shall not be accidentally withdrawn during the operation oftransferring a blade from the magazine to the razor. This might happen,for example, when the ejector slide 35 is being retracted preparatory toejecting a blade from the magazine and transferring it into the razor.Such effects may be avoided with sufficient certainty for practicalpurposes by providing the slot 36 in the scabbard and a registering slot31 registering therewith in the aligning finger, registration of theseslots taking place only when the aligning finger extends into thescabbard to its fullest extent.

' The two slots together, in turn, register with a projection 33extending downwardly from the platform [2, and this relationship of theparts causes the aligning finger to be locked against withdrawal fromthe scabbard.

Again, it is desirable that, when the razor is ready for shaving andduring the shaving operation, the scabbard should be positively locatedin its down positioni. e., the position shown in Fig. 1, and that itshould not be released except as the operator desires. A convenient wayof providing for this contingency is to provide the scabbard with a slot39 and the spring tongue 20 with a short lug 40, the slot and the lugbeing so positioned with relation to each other that, when the scabbardis in the position shown in Fig. 1, the lug projects through the slot 39struck out from the spring tongue 20; and therefore being merelyspring-pressed in position, it will be readily displaced by the aligningfinger when the latter is inserted in the scabbard. To make theoperation smooth, the aligning finger may terminate in a projection 4|beveled off as at 42, and the edge of the slot 39 may be beveled off asat 43. When, therefore, the scabbard is in the down position shown inFig. l and free from the aligning finger, it is securely locked againstrotation and can only be unlocked by the insertion therein of thealigning finger to its full length.

Another feature which assists greatly in the performance of the deviceas a shaving implement may be observed by reference to Figs. 2 and 3. Itwill be seen that, in Fig. 3 wherein the blade holder is in retractedposition ready for the transfer of a blade (the blade 3| already in theblade holder being retracted from the stops), the blade holder is seatedwell back into the blade clamp, and that it is withdrawn clear of thelip 44 of the blade clamp formed by turning down the edge of the latter.Preferably, the clamping tension of the blade holder itself is soadjusted in manufacture that the pressure on the blade, insofar as it isproduced merely by the tension of the holder itself, is merelysufficient to prevent the blade from falling out. reason why somefrictional grip on the blade is desirable even when the blade holder isin the retracted position of Fig. 3 is in order that the blade that isbeing ejected from the razor may be easily deposited where it is wanted,and also in order that the incoming blade shall remain located. On theother hand, too much pressure of the blade holder during the transfer ofa blade from the magazine is objectionable-first, because it imposes anundue resistance to operation of the magazine ejector slide, and,second, because repeated injection of blades into the slot in the bladeholder exerts a broaching action, which if repeated often enough resultsin weakening it and in widening the slot from its original dimensions.Still, on the other hand efficient and comfortable shaving requiresthat, when the blade is in shaving position, it shall be held tightlyclamped and be held rigidly in place. The latter object, together withavoidance'of the objectionable results arising out of too loose pressureof the blade clamp on the blade are accom plished by means of the lip 44of the auxiliary blade clamp above referred to. Since the blade clamp iscapable of only a pivotal motion on the platform 12 (being incapable ofmoving either backward from or forward toward the stops), and since theblade holder with its blade must oscillate on its pivotal connections 23and 23a, a motion of the blade holder toward the stops results in itspartially leaving the blade clamp, as shown in Fig. 2, but in doing soit encounters the lip 44 of the blade clamp which, being springpressedby virtue of the resilience of its material andnormally making a narrowchannel, presses the lip 44 downwardly against the part I! of the bladeholder and thus secures the blade itself rigidly and firmly in position.On the other hand, withdrawal of the blade from contact with the stopsto the position shown in Fig. 3 effects a release of the pressureexerted by the lip 44 and thus reduces the clamping pressure on theblade to that exerted by the blade holder alone.

I have described above only the preferred form of my invention, but Iwish it to be understood thatthese are illustrative and not limitativeof my invention and that I reserve the right to make various changes inform, construction and arrangement of parts and also to make variouschanges in process of manufacture falling within The-- the spirit andscope of my invention, as set forth in the claims.

I claim:

1. A razor comprising a platform, a guard, a blade holder pivotallysupported by the blade platform, the axis of the pivot being parallelwith the guard, a blade clamp also pivotally mounted on the bladeplatform and slidably enclosing the blade holder, the pivoting axes ofthe blade holder and the blade clamp being so positioned with relationto each other that as the blade holder is moved toward the guard theblade clamp is biased against it and thus securely clamps the blade.

2. A razor comprising a platform, a guard, a bladeholder mounted formovement toward and away from the guard, a pivotally mounted blade clampenclosing the blade holder but capable of movement with relationthereto, the pivoting axis of the blade clamp being so positioned thatas the blade holder is moved toward the guard the blade clamp is biasedagainst it and thus securely clamps the blade.

3. A razor comprising a guard member, a blade holder supported foroscillating motion toward and away from the guard member, a pivotallymounted blade clamp, the pivoting axis of which is so located that theblade clamp is biased against the blade holder as the latter movestoward the guard and releases the blade holder as the blade holder movesaway from the guard.

4. A razor comprising a guard member, a blade holder supported foroscillating motion toward and away from the guard member and providedwith a slot for the reception and retention of a blade, and a pivotallymounted blade clamp the pivoting axis of which is so located that theblade clamp is biased against the blade holder as the latter movestoward the guard and releases-the blade holder as the blade holder movesaway from the guard.

5. A razor comprising a guard member, a blade holder supported foroscillating motion toward and away from the guard member, and apivotally mounted blade clamp provided with a slot to. accommodate theblade holder, the pivoting axis of the blade clamp being so located thatthe blade clamp is biased against the blade holder as the latter movestoward the guard, and releases the blade holder as the blade holdermoves away from the guard.

6. A razor comprising a guard member, a blade holder supported foroscillating motion toward and away from the guard member and providedwith a slot for the reception and retention of a blade, and a pivotallymounted blade clamp provided with a slot for the reception of the bladeholder, the pivoting axis of the blade clamp being so located that theblade clamp is biased against the blade holder and clamps the blade asthe blade holder moves toward the guard, and releases the blade holderas the blade holder moves away from the guard.

'7. A razor comprising a guard member, stops near the guard member, ablade holder supported for oscillating motion toward and away from thestops and provided with a slot for the reception and retentionof ablade, and a pivotally mounted blade clamp the pivoting axis of which isso located that the blade clamp is biased against the blade holder asthe latter moves toward the guard, and releases the blade holder as theblade holder moves away from the guard.

8. A razcr comprisinga guard member, a blade holder supported foroscillating motion toward and away from the guard member and providedwith a slot for the reception and retention of a blade, the razor beingprovided with a slot for the reception of the aligning finger of aninjector magazine, means for moving the blade holder to a position atwhich the edge of the blade is in shaving position, and also for movingit to a position whereby the blade holder slot is in alignment with theblade ejection orifice of a magazine injector aligned with the slot insaid razor, and a pivotally mounted blade clamp the pivoting axis ofwhich is so located that the blade clamp is biased against the bladeholder as the latter moves toward the guard, and releases the bladeholder as the blade holder moves to said aligning position.

OCTAVIUS V. RODRIGUES.

